baber/WOPTO huggingface dataset:
Patent DE-4141485-A1 (DE)
Title: Gas and oil Drilling fluids processing and disposal - by addn. of inorganic and/or organic conditioning agent esp. aluminium or iron and the sepn. of fluid into solid and fluid phases, reducing costs etc.
Inventor: MIDDELMANN JOACHIM
IPC: A62D101/20
Filed: 1991-12-16
Abstract: Reprocessing and/or disposal of drilling fluid comprises (i) adding inorganic and/or organic conditioning agents to the drilling fluid; (ii) sepg. the conditioned drilling fluid into a solid and fluid phase; and (iii) reintroducing the fluid into a cycle or depositing it. Pref., (i) are anionic and/or cationic synthetic flocculation agents and/or an organic precipitants, such as Al3+ and/or Fe3+-salts. An anionic synthetic flocculation agent, such as a polyacrylate, may be used as conditioning auxiliary agent. The conditioning agent and/or the conditioning auxiliary agents are used to 100-6000ppm and their addn. may be gradual. USE/ADVANTAGE - The process is used during the drilling for gas and oil, partic. in depth of approximately 600m and more. In prior art methods salts which had been sepd. from the solid-fluid mixts. by centrifugation were used as drilling fluids yielding bad results. Since this drilling fluid can not be regenerated it had to be driven away and deposited in lakes, which is ecologically unsound and not economical. In the new method, the sepn. into a solid and a fluid phase is facilitated, and the fluid phase can be recycled. No new salts have to be added and the cost of up to 300g salt per 1 fluid is save
Patent DE-4141699-A1 (DE)
Inventor: GRIESHABER HERMANN DIPL ING
IPC: F02M59/26
Filed: 1991-12-18
Abstract: A fuel injection pump for internal combustion engines, having a reciprocated pump piston 4 and an annular slide (13, Fig 1) which is axially displaceable thereon. The annular slide has a discharge bore 39 cooperating with an oblique groove 23 on the pump piston 4, which oblique groove is connected to the pump working chamber (6, Fig 1) by way of a passage 37. For the purpose of controlling the commencement of delivery, a recess 31 is disposed at the bottom end 30 of the oblique groove 23. The recess 31 has a reducing cross-section away from the pump working chamber e.g. triangular or T-shaped and such shape renders it possible to delay the commencement of delivery and thus obtain a smooth pressure rise in the high-pressure chamber. Furthermore, the discharge bore (39, Fig 1) in the annular slide (13) may have a lower control edge (51, Fig 1) which lies parallel to the upper control edge 27 of the oblique groove 23 and by which a rapid discharge is achieved upon the termination of delivery. <IMAGE>
Patent DE-4142974-A1 (DE)
IPC: A01N59/26
Filed: 1991-12-24
Abstract: A fungicidal composition contains a combination of active substances for preventing and treating acute plant diseases caused by fungi. One of the active substances is a phosphite. The composition is characterized in that it contains at least one phosphite selected among K2HPO3, KH2PO3, Na2HPO3 and NaH2PO3, lecithin and sodium metasilicate and/or soda water glass.
Patent DE-4202818-A1 (DE)
Inventor: ROSSNER WOLFGANG DR
IPC: G21K4/00
Filed: 1992-01-31
Abstract: To produce a fluorescent screen, use is made of a substrate plate (1) with a plurality of holes (2) arranged on at least a first surface of the substrate plate (1) in the form of a hole matrix. A crystalline fluorescent plate (4) is applied to the first surface. The holes (2) are filled with crystalline luminous substance by the plastic deformation of the fluorescent plate (4). The process is especially suitable for the production of fluorescent screens using luminous substance of the alkali halide class.
Patent DE-4203237-A1 (DE)
Title: Photographic exposure control esp. with corrected amt. of light - involves addn. to preselected amt. in accordance with prod. of measurement strip error and film-dependent gradation constant
Inventor: DANNAPFEL RALF
IPC: G03C5/02
Filed: 1992-02-05
Abstract: A photosensitive control film, before which a wedge measurement strip is placed, is exposed to a preselected quantity of light and developed. Any difference between the actual and desired wedge measurement strip is evaluated and multiplied by a gradation constant dependent upon the film and colour. The prod. is added to the preselected quantity of light in order to obtain a corrected value for this quantity. A further correction may be added as the prod. of the gradation constant and a developer constant. USE/ADVANTAGE - Esp. for colour printing, e.g. in match-print automat. Precise exposure can be achieved by method suited to automation.
Patent DE-4205663-A1 (DE)
Title: Two-stroke IC engine - has stepped piston with sealing rings at both ends, for lubrication of piston, gudgeon pin, and cylinder wall
Inventor: TONTCH PETER
IPC: F02B33/12
Filed: 1992-02-25
Abstract: The engine has sealing rings on piston foot (1.2) and piston head (1.1). The piston foot has a larger dia. than the remaining part of the piston, to take in more air and increase the filling vol. This permits simultaneous oil lubrication of piston, gudgeon pin, and cylinder wall between piston foot and cylinder step (10). During a downward movement of the piston and below the cylinder step, oil is injected from spray nozzles (11) against the piston (1). During upward movement, the oil is returned through the piston foot into the crankcase (9) via oil drainage ducts (15). With the piston movement, the pump action between cylinder step and piston foot is used for the delivery of oil or oil mist. ADVANTAGE  - No oil losses, high performance, and reduced pollution.,
Patent DE-4206891-A1 (DE)
Title: Processing spent active carbon@ filter elements - by first heating to destroy adhesive binder followed by reactivation of released carbon@ spheres
Inventor: BLUECHER HASSO VON
IPC: C01B31/08
Filed: 1992-03-05
Abstract: Process for disposal of filter webs and filter mats charged with spherical carbon and cuttings of these, whereby in a first stage the spherical carbon is thermally detached and at least the adhesive binder is destroyed, and subsequently the spherical carbon is reactivated in a second stage. Pref. in the first stage the comminuted material is treated at 300-400 deg.C. in a rotary oven, opt. under mild oxidising conditions, and the subsequent reactivation of the spherical carbon is carried out at 700-900 deg.C. with the introduction of steam in a rotary oven or fludisied bed. USE/ADVANTAGE - The first heating stage causes depolymerisation of the adhesive (generally polyurethane) used to bond the active carbon spheres to the filter carrier (e.g. cotton fabric, polyurethane foam, etc.), and in some cases also destroys the carrier itself, so that in either case the carbon spheres are easily recovered. In the second stage, the carbon spheres are regenerated to recover active carbon spheres with very good mechanical and adsorptive properties. The process is useful for environmentally friendly reprocessing of exhausted filter elements from protective clothing, air conditioning plants, solvent recovery units, water treatment plants, etc
Patent DE-4208924-A1 (DE)
Title: Communication between processors in parallel processing computers - is achieved by transmission between computers involving real and virtual memory sectors
Inventor: HAMANAKA NAOKI
IPC: H04L29/00
Filed: 1992-03-19
Abstract: A parallel processing computer has multiple clusters (100) that are interconnected via a network. Each cluster has a CPU (1) that can be microprocessor based, a memory (2) that serves as the main store for the cluster and is accessed by the CPU. A transmission data read circuit (110) is used to obtain data from the memory to allow transmission in packet form over the network (4). A receive circuit (42) handles incoming data. The main memory has a real region (13), together with a virtual memory region within the CPU. Transmissions occur between real memory regions in cluster systems. ADVANTAGE - Reduced operational overhead to allow improved cluster communication.
Patent DE-4211061-A1 (DE)
Title: Thermoplastic material with improved heat stability and cracking resistance - comprises aromatic polycarbonate(s), polyamide(s), graft copolymer contg. rubber elastomer and substd. styrene, polymeric cpd. contg. acrylate(s) and filler
Inventor: NIESSNER NORBERT DR
IPC: C08L77/00
Filed: 1992-04-03
Abstract: Thermoplastic material (X) comprises (A) 1-96 wt.% one or more aromatic polycarbonate; (B) 1-96 wt.% one or more polyamide; (C) 1-30 wt.% one or more graft polymer; (D) 1-80 wt.% thermoplastic copolymer; (E) 1-30 wt.% OH gp.-contg. polymeric cpd.; and (F) 0-50 wt.% filler (mixt.) fibres or particles. (C) comprises (C1) 40-80 wt.% rubber elastomer derived from alkyl acrylates with 1-8C atoms in alkyl component and having a Tg less than 10 deg.C; and (C2) 20-60 wt.% graft comprising 50-95 wt.% opt. substd. styrene of formula (I) or mixts. thereof and 5-50 wt.% (meth)acrylonitrile, 1-8C alkyl (meth)acrylate, maleic anhdride, 1-8C alkyl or 6-20C aryl N-substd. maleic acid imide or mixts. thereof. In (I), R is 1-8C alkyl or H; R' is 1-8C alkyl; and n is 0-3. (D) comprises 50-95 wt.% opt. substd. styrene of formula (I), 1-8C alkyl (meth)acrylates or mixts. thereof and 5-50 wt.% (meth)acrylonitrile, 1-8C alkyl (meth)acrylate, maleic anhydride, 1-8C alkyl or 6-20C aryl N-substd. maleic acid imide or mixts. thereof. USE/ADVANTAGE - The use of (X) for the prepn. of fibres, films and moulded articles is claimed. The material shows high heat stability and resistance to cracking under tension.
Patent DE-4215580-A1 (DE)
Title: Sludge water extn. - uses a conical container for sludge to pass through vertically under pressure, which is set according to water content
Inventor: KASTEN HEINZ
IPC: C02F11/123
Filed: 1992-05-12
Abstract: To extract water from sludge, the sludge is passed vertically through a conical container. The sleeve blankets are moved by a geared motor with infinitely variable control to set the throughput speed and the deg. of water extraction. The pressure is applied according to the water content, to give a lower pressure on a raised water content. A motor oscillates the container with its contents, to bring the water content to the sludge surface, and increase the water extraction rate. USE/ADVANTAGE - The sludge press unit is a low-cost system for sewage processing, which delivers a high content of dry material in the end product.
Patent DE-4215926-A1 (DE)
Title: Lining canalisation pipes - using rigid lining pipe comprising hose-shaped fibre layer saturated with hardenable resin and having plastic foil in both sides
IPC: F16L55/165
Filed: 1992-05-14
Abstract: The fibre layer consists of textile-glass fibres of E-glass and/or E/CR glass in accordance with ISO 2078 and DIN 1259. Hot air at a temp. of 60-100 deg. C at an excess pressure of approximately 1 bar is pumped in the lining pipe laid in the canalisation pipe. This temp. and pressure is maintained in the hot air for approximately 120-180 minutes. The one end of the draw line laid in the lining pipe is joined with the one end of the inner plastic foil. The foil is then drawn to the other end of the lining pipe. USE/ADVANTAGE - To fit a lining in a canalisation pipe involving less material and expense than hitherto, the work being accomplished in a shorter time.
Patent DE-4217490-A1 (DE)
Title: Frame support system for drying pullovers etc. - comes as packaged set which is compact for mail order distribution
Inventor: SCHWARZ DIETER
IPC: D06F57/00
Filed: 1992-05-22
Abstract: A frame support system comes as a packaged set and can be assembled and erected. It incorporates a tensioned net forming a support surface plane. The plane, which can also consist of a fabric, a rope system etc., is for supporting objects to be dried such as pullovers. The frame comprises at least three vertical posts, which can be connected by means of longitudinal cross bar elements. Each element consists of at least two separate elements which are easy to connect. ADVANTAGE - Compact and requires little space in order to be transported. It is particularly suitable for distribution by mail order companies.
Patent DE-4219682-A1 (DE)
Title: Universal printer for processing single sheets or endless web - transports inserted sheet along processing surface, turns over and deposits at input end
Inventor: BAUR RUPERT DIPL ING
IPC: B41J11/54
Filed: 1992-02-21
Abstract: The printer has an input (59) at the start (59) of a processing surface (58) for motorised feeding of single sheets (5). Either a horizontal input (60) or top side input (61) is provided for manual or automatic feeding of individual sheets. The sheets are transported along the processing surface and turned over, to be transported in the opposite direction and deposited. The housing of the appts. can be swung open together with several processing stations. A bar-code reader or magnetic strip detector may be provided above the processing surface. USE/ADVANTAGE - For travel agents etc. for printing tickets and travel documents. Ergonomic and user-friendly. Output and input at same side of machine.
Patent DE-4233923-A1 (DE)
Title: Method of mfg. folding cardboard box - guides free ends of side portion during folding in machine without any bending moment at box bottom
Inventor: SCHMITT REINHOLD DIPL ING
IPC: B31B50/00
Filed: 1992-10-08
Abstract: The free end edges (33a) of the side portions are forcibly guided during folding in the machine. This is done such that the bottom section (31) remains free of any bending moments at its regions admitting the outer edges of the punch surface. The side portions are double walled with the inner (32a) and outer (32b) walls being joined by an upper end wall (32c) forming a fillet on the side wall. The upper folding edge (33a) of the outer wall forms the end edge of the side wall during folding. ADVANTAGE - No bending of the bottom section edges without need for recesses in the relevant wall portions.
Patent DE-4235152-A1 (DE)
Title: Semiconductor fine structure mfg. method - producing separate small islands by etching raw poly:silicon@ on semiconductor material
Inventor: WINKLER WOLFGANG DR ING
IPC: H01L21/335
Filed: 1992-10-19
Abstract: A sequence of layers of silicon nitride (2), silicon oxide (3) and rough polysilicon are formed on a semiconductor base material (1). The polysilicon is divided into parts by the etching of individual silicon islands (5) with an approximate diameter of 50 nm. The underlying layers are etched as far as the semiconductor base material using the silicon islands as a mask to form fine silicon oxide columns. The surface of the semiconductor base material is then etched to form just as fine silicon columns. USE/ADVANTAGE - For semiconductor components e.g. vertical transistors. Reduces dimensions of silicon columns using existing etching and implantation processes.
Patent DE-4238523-A1 (DE)
Title: Appts for holding socks in pairs while drying - has clamp containing a suspension device for hanging socks on lines with different diameters
Inventor: KOSSACK CHRISTIAN
IPC: D06F95/00
Filed: 1992-11-16
Abstract: An installation is for holding socks together in pairs during washing and a drying process. It features a clamp, which is rounded on all sides and contains a suspension device to permit the installation to be suspended on washing lines of different diameters independently of the operation of the clamp. The invention is made of materials that do not warp nor lose the tension force forming the clamp force at temperatures prevailing in washing machines and dryers. ADVANTAGE - The method facilitates the sorting and hanging of pairs of socks, which can be associated with different members of the family if they adopt installations of different colours.
Patent DE-4240614-A1 (DE)
Inventor: KINGSTON ANDREW-WILLIAM
IPC: B60G17/018
Filed: 1992-12-03
Abstract: A system for regulation and/or control of a regulable and/or controllable vehicle suspension comprises actuators (13) which are arranged between the vehicle structure and the wheels and which are acted on by signals (F) for the exertion of forces in dependence on the state of travel of the vehicle. The system incorporates means (12) which limits the temporal changes of the signals (F) and thus of the forces to be exerted, whereby high-frequency peaks in the changes in force may be inhibited so as to improve travel comfort, reduce shocks and jolts perceivable in the vehicle and, when adjustable shock absorbers are used, reduce switching noises. <IMAGE>
Patent DE-4243979-A1 (DE)
Title: Motor vehicle suspension with variable hardness dampers - has vertical motion sensors on each damper and with programmed control to minimise bouncing
Inventor: KIMURA MAKOTO
IPC: B60G17/08
Filed: 1992-12-23
Abstract: Each suspension unit has a variable hardness damper linked to a central control (4). Vertical motion sensors on the damper, sensors on the engine, and on the steering, provide the additional data for the active control. The system detects bouncing and reduces the hardness of the suspension dampers accordingly to ensure a more comfortable ride. The hardness is varied by remote control via the control unit. The control regulates the bouncing, pitching and rolling of the suspension w.r.t. the speed of the vehicle and the steering setting. The control provides a correction signal for bouncing, to overlay the overall control of the dampers. The control unit (4) has an interface circuit, CPU and a drive circuit. The interface circuit has for filter circuits, each coupled to one of the vertical G sensors (1). ADVANTAGE - Improved comfort, automatic suspension control.
Patent DE-4244558-A1 (DE)
Title: Separable connection for vehicle air bag cover - uses two surfaces joined by hook and loop type fastener and which opens when there is forced movement between surfaces
IPC: B60R21/215
Filed: 1992-12-30
Abstract: The connection (30) is defined by a first surface (32) overlapped by a second surface (34), with the two surfaces joined by a hook and loop fastener (30). The separable connection has such a structure that it opens as a result of the movement by force of the first and second surfaces relative to each other. This happens when the movement is at first in a shear direction parallel to the surfaces and vertical to the direction of the force. ADVANTAGE - Separable connection having an effective lock suitable for mass prodn. techniques.
Patent DE-4302895-A1 (DE)
Title: Surgical sewing material
Inventor: KECKSTEIN GEORG
IPC: A61B17/06
Filed: 1993-02-02
Abstract: Sewing thread (1) at least section-wise has raised formations (2) or cavities in its surface and is connected to an eyelet (4), which has pawl-type engagement section (5), and which in one direction can be pushed over raised formation and cavities and stopped in opposite direction. Eyelet (4) is integral with the sewing thread (1) and formed at its one end.The raised formations (2) or cavities are only formed on a part of the thread periphery. The raised formations are provided with a flat flank in the sewing direction and steep flank in opposite direction. Cavities are formed as inclined running incisions to thread longitudinal axis.
Patent DE-4308286-A1 (DE)
Title: Filter cartridge cleaning - uses bursts of compressed air with flow cross section matching central filter opening
IPC: B01D46/24
Filed: 1993-03-16
Abstract: To clean a tubular filter cartridge of dust particles, and the like, a burst of compressed air is directed at one end side of the filter cartridge where the outer contour of the ring-shaped or solid compressed air stream is directed at the plane covering the whole inner cross section of the filter cartridge opening, across the opening width. Also claimed is an appts. with a housing to take an inserted filter cartridge to be held tightly against the housing cover by sealing flanges. The compressed air is fed by a compressed air valve. A number of jets have jet openings at a gap over the filter openings. The air flow cross section is developed by a free stream in front of the filter opening, and it can be guided by one or more short sleeves in front of or round the filter openings. The compressed air cross section is matched to the cross section of the filter opening by setting the outlet cross section and the gap between the jet and the filter. The air cross section width is set by a cone in front of the filter opening, with its point against the air flow direction. The air is delivered in one or more pulses. Where a number of cartridges are assembled for cleaning, they are subjected to compressed air bursts in succession, separately or in groups, to maintain their filtering action. The air jets are controlled separately or in groups by valves with a valve for each jet or several jets. The compressed air is delivered from a rotating arm, powered pneumatically or electrically, carrying a compressed air valve and at least one jet, locked in place by a ratchet at least for the duration of air delivery. The ratchet lock is released by the compressed cleaning air. USE/ADVANTAGE - The system is for cleaning filter cartridges which are clogged by particles such as dust and the like. It gives a reliable and effective cleaning action over the whole of the filter surface.
Patent DE-4312704-A1 (DE)
Title: Modular climbing wall
Inventor: NIXEL FRITZ
IPC: A63B69/00
Filed: 1993-04-20
Abstract: The climbing wall comprises essentially large-surface-area panel parts (1) which can be attached to one another in the form of a grid and each have, on their rear side, a frame which reinforces the panel border and can be connected to the frame of adjacent panel parts to form a latticework which reinforces the climbing wall on the rear side. <IMAGE>
Patent DE-4314509-A1 (DE)
Title: Method and means for producing an improved heat pump
Inventor: GUNDLACH ROBERT WILLIAM
IPC: F25D17/02
Filed: 1993-05-03
Abstract: A description is given of a heat pump in which the fairly cold, heat-absorbing surface of the heat pump obtains heat from a freezing liquid, which heat is then led to the heating end of the heat pump. In practice, the freezing liquid is held at a temperature just below zero degrees Celsius by injecting water droplets into the water-repellant freezing liquid, which then freeze upon sinking. The resulting ice pearls are then transported into a melt water tank. The heat of melting (fusion) of the water obtained by freezing of the water is again replaced by natural heat sources owing to the fact that heat of melting flows in the circuit through floor coils, solar collectors or air-to-water heat exchangers. The melt water reserve, which is available for exploiting the heat of melting of the water, further serves the purpose of temporarily bridging fluctuations in the demand for natural heat.
Patent DE-4315700-A1 (DE)
Title: Aeration device
Inventor: SCHMIDT-HOLTHAUSEN HANS-JOACHI
IPC: B01F3/04
Filed: 1993-05-11
Abstract: The aeration device (10) is provided with a hollow distributor (11), on which is arranged at least one tube aerator (12). The tube aerator (12) is provided with a support tube which is closed at both ends and is surrounded by a flexible aeration hose (16) which is provided in its hose wall with a number of holes and/or slots and which is joined gas-tightly at its two end regions to the support tube. To receive the tube aerator (12), the distributor (11) is provided with two through-holes (13) aligning with each other, through which the tube aerator (12) is passed so that it projects therefrom on both sides. A seal (18) is present at each through-hole (13). The tube aerator (12) is furnished with a through-orifice in the longitudinal section situated within the distributor (11). <IMAGE>